//
// 表单
//
.form-control-validation(@border-color :#ccc, @color: #555, @background: #f5f5f5) {
    // Color the label and help text
    .help-block,
    .form-label,
    .radio,
    .checkbox,
    .radio-inline,
    .checkbox-inline,
    &.radio label,
    &.checkbox label,
    &.radio-inline label,
    &.checkbox-inline label {
        color: @color;
    } // Set the border and box shadow on specific inputs to match
    .form-control {
        border-color: @border-color;
        .box-shadow(inset 0 1px 1px rgba(0, 0, 0, .075)); // Redeclare so transitions work
        &:focus {
            border-color: darken(@border-color, 10%);
            @shadow: inset 0 1px 1px rgba(0, 0, 0, .075),
            0 0 6px lighten(@border-color, 20%);
            .box-shadow(@shadow);
        }
    } // Set validation states also for addons
    .input-group-addon {
        color: @color;
        border-color: @border-color;
        background: @background;
    } // Optional feedback icon
    .form-control-feedback {
        color: @color;
    }
}

// Form control focus state
//
// Generate a customized focus state and for any input with the specified color,
// which defaults to the `@input-border-focus` variable.
//
// We highly encourage you to not customize the default value, but instead use
// this to tweak colors on an as-needed basis. This aesthetic change is based on
// WebKit's default styles, but applicable to a wider range of browsers. Its
// usability and accessibility should be taken into account with any change.
//
// Example usage: change the default blue border and shadow to white for better
// contrast against a dark gray background.
.form-control-focus(@color) {
    @color-rgba: rgba(red(@color), green(@color), blue(@color), .6);
    &:focus {
        border-color: @color;
        outline: 0;
        .box-shadow(~"inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px @{color-rgba}");
    }
}

// Form control sizing
//
// Relative text size, padding, and border-radii changes for form controls. For
// horizontal sizing, wrap controls in the predefined grid classes. `<select>`
// element gets special love because it's special, and that's a fact!
.input-size(@input-height, @padding-vertical, @padding-horizontal, @font-size, @line-height, @border-radius) {
    height: @input-height;
    padding: @padding-vertical @padding-horizontal;
    font-size: @font-size;
    line-height: @line-height;
    border-radius: @border-radius;
    select& {
        height: @input-height;
        line-height: @input-height;
    }
    textarea&,
    select[multiple]& {
        height: auto;
    }
}